One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,7)(4,12)(5,9)(6,10)(8,11)(13,15)(14,16)(17,18,24,29)(19,30,25,32)(20,26,21,31)(22,28,23,27)(1,3,6,5)(2,7,10,9)(4,11,13,14)(8,15,16,12)(17,19)(18,20)(21,29)(22,26)(23,31)(24,25)(27,32)(28,30)(1,4)(2,8)(3,11)(5,14)(6,13)(7,15)(9,12)(10,16)(17,20,24,21)(18,25,29,19)(22,30,23,32)(26,28,31,27)(17,21,24,20)(18,26,29,31)(19,27,25,28)(22,30,23,32)(1,3,6,5)(2,9,10,7)(4,11,13,14)(8,12,16,15)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.